World Neurosurg
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Venous collaterals form because of occlusion of the superior sagittal sinus (SSS), thus preserving venous drainage. Previous studies have focused on the evaluation and protection of sinuses and cortical veins and have neglected the collaterals between the SSS and deep venous system, which are important for surgical planning. We aimed to study the venous compensatory patterns inside and on both sides of the cerebral falx (parafalx) in patients with meningioma invading the SSS. ⋯ In meningiomas invading the SSS, especially with complete posterior SSS occlusion, the parafalcine collateral veins and falcine sinus should be evaluated preoperatively to avoid iatrogenic injury.
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Case Reports
Sudden onset of paraparesis caused by an hemorrhagic thoracic synovial cyst. Case report.
Hemorrhage is a rare presentation of spinal synovial cysts, which are usually located in the lumbar spine. They may cause an epidural hematoma and compression of the cauda equina. Infrequently, they may be located in the thoracic spine. ⋯ This report describes a unique case of hemorrhagic synovial cyst at the mid-thoracic spine. These lesions are rarely located in the cervico-thoracic spine but should be included in the differential diagnosis of myelopathy.
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To analyze the outcomes of use of a lumboperitoneal shunt (LPS) to treat all-cause communicating hydrocephalus (ACCH). ⋯ Our findings indicate that LPS may be a promising option for the treatment of ACCH.
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Transcallosal microscopic and endoscopic excisions are both well established approaches to colloid cyst resection; however, there has been no clear consensus regarding the favored approach. We performed a systematic review comparing the transcallosal microscopic and endoscopic transcortical approaches for colloid cyst excision. ⋯ Modern series of colloid cyst excision continue to favor transcallosal approaches in achieving gross total resection. Nevertheless, endoscopic techniques have significantly reduced morbidity compared to transcallosal approaches, including lower rates of infection, infarct, and seizure. Endoscopic approaches also have a statistically significant decreased rate of shunt dependency-arguably the most important primary endpoint of surgery. With improving endoscopic technology and mastery of the technique, endoscopic excision is maturing into a standard first-line approach for colloid cyst excision.
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Anterior cervical discectomy and fusion (ACDF) is the most common procedure for single-level cervical spondylotic myelopathy (CSM); however, for multilevel CSM, some patients may also undergo anterior cervical corpectomy and fusion (ACCF). We sought to assess differences in clinical outcomes between patients undergoing ACDF and those undergoing ACCF for multilevel CSM. ⋯ Our analyses indicate that ACCF may be associated with worse clinical outcomes than ACDF following multilevel treatment for CSM.